Can this addendum be electronically signed?

Yes. Under the ESIGN Act (15 U.S.C. ch. 96) and UETA in most states, electronic signatures are legally valid if the parties consent, intent is shown, the signature is attributable, and records are retained.

Do I need a notary or witnesses?

Usually no for commercial membership amendments, unless the underlying contract requires it or state law imposes notarization for certain types of modifications; check state notary rules before execution.

What if a signer lacks authority?

An unauthorized signature can void the addendum; confirm signatory authority in the signature block and, when necessary, attach a board resolution or power of attorney.

How do I revoke or cancel an addendum?

Revocation requires a signed mutual amendment or an express termination clause; unilateral revocation is typically ineffective unless the addendum provides for it.

Where should I store executed copies?

Keep signed originals with the base agreement in your contract repository and retain electronic copies with immutable audit trails and access controls for compliance and audits.

What retention period applies?

Retain executed addenda for the contract term plus federal or industry-specific minimums (e.g., IRS three-year guidance, HIPAA six-year rule) and follow any longer state requirements.

Electronic Signature
Templates
Miscellaneous
Membership Services Agreement Addendum

Membership Services Agreement Addendum

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

Membership Services Agreement Addendum

This Addendum is made effective as of to the Membership Services Agreement dated (the "Agreement") between Service Provider: and Member: .

RECITALS

WHEREAS, Service Provider and Member entered into the Agreement to govern the provision of membership services and related deliverables; and

WHEREAS, the parties desire to modify and supplement certain terms of the Agreement as set forth in this Addendum to address additional services, fees, and the term applicable to such services; and

WHEREAS, all capitalized terms used but not defined in this Addendum shall have the meanings set forth in the Agreement unless otherwise defined herein.

SCOPE OF ADDITIONAL SERVICES

Service Provider shall provide the additional services described below (the "Additional Services"). The Additional Services are incorporated into and made part of the Agreement. Service Provider shall perform the Additional Services in a professional and workmanlike manner consistent with prevailing industry standards.

Describe Additional Services

PAYMENT TERMS

In consideration of the Additional Services, Member shall pay Service Provider as set forth below. All payments due under this Addendum are in addition to amounts payable under the Agreement unless expressly stated otherwise.

Total Additional Fee Payment Schedule or Milestones Invoices Payable Late Payment Fee

All amounts payable hereunder shall be paid in lawful currency, free and clear of any deduction, setoff or withholding, except as required by applicable law. If Member disputes any portion of an invoice in good faith, Member shall pay the undisputed portion in accordance with this Addendum while the parties resolve the dispute in accordance with the Agreement.

TERM AND TERMINATION

The term of this Addendum shall commence on and shall continue until , unless earlier terminated in accordance with this Addendum or the Agreement.

Either party may terminate this Addendum for convenience upon days' prior written notice to the other party. Either party may terminate for material breach in accordance with the Agreement. Termination of this Addendum shall not relieve Member of its obligation to pay for services performed and expenses incurred through the effective date of termination.

CONFIDENTIALITY

All information disclosed by either party in connection with the Additional Services that is designated confidential or that reasonably should be understood to be confidential given the nature of the information and the circumstances of disclosure ("Confidential Information") shall be subject to the confidentiality protections set forth in the Agreement. The receiving party shall not use Confidential Information except to perform its obligations under this Addendum and shall protect Confidential Information using at least the same degree of care it uses to protect its own confidential information, but in no event less than a reasonable degree of care.

REPRESENTATIONS, INDEMNIFICATION, AND LIMITATION OF LIABILITY

Each party represents that it has the full right, power and authority to enter into and perform this Addendum. To the extent permitted by law and except as expressly limited by the Agreement, each party shall indemnify and hold harmless the other from claims arising out of its negligence, willful misconduct, or breach of this Addendum.

GOVERNING LAW

This Addendum shall be governed by and construed in accordance with the laws of the State of , without regard to conflicts of laws principles.

ENTIRE AGREEMENT; AMENDMENT

This Addendum, together with the Agreement, constitutes the entire agreement between the parties with respect to the Additional Services and supersedes all prior discussions, understandings and agreements relating thereto. Except as expressly modified herein, all terms and conditions of the Agreement remain in full force and effect. Any further amendment must be in a written instrument signed by authorized representatives of both parties.

NOTICES

All notices under this Addendum shall be given in the manner described in the Agreement. For convenience, the parties' contact information for notices specific to this Addendum is set forth below; such information updates shall be effective only upon written notice in accordance with the Agreement.

Service Provider Address Service Provider Contact Service Provider Email

Member Address Member Contact Member Email

Service Provider:

By:

Date:

Member:

By:

Date:

What the Membership Services Agreement Addendum Is

A Membership Services Agreement Addendum modifies or supplements an existing membership or service agreement to add, change, or clarify services, fees, term, or performance standards. It becomes part of the base contract once executed by the parties and should reference the original agreement by title and date. Addenda are commonly used to add new service tiers, update pricing, extend terms, incorporate compliance obligations, or document negotiated exceptions without reissuing the full agreement. Keep a signed copy with the original contract for continuity and auditability.

Why a Clear Addendum Matters

An addendum provides a concise, enforceable record of changes while preserving the original agreement. It reduces ambiguity, establishes effective dates for new obligations, and helps manage liability by documenting mutual consent to modifications.

Who Typically Prepares and Signs This Addendum

Signatories should ensure the person executing the addendum has authority under the main agreement and that the addendum references the original contract clearly.

Membership managers and account teams who document pricing or scope adjustments with members.
Legal or contract administrators who need a written record of negotiated changes.
Finance teams or billing admins who must record new fees, billing cycles, or payment terms.

Core Parts of a Professional Addendum

A complete addendum is brief but precise: it identifies the base agreement, lists modifications, sets effective dates, clarifies consideration, assigns responsibilities, and includes signature blocks for authorized parties.

Reference

Identify the original agreement by title, date, and parties so the addendum attaches unambiguously to the base contract and avoids conflicting interpretations.

Scope Change

Clearly state which services, deliverables, or membership tiers are added, removed, or amended, including measurable performance metrics where applicable.

Consideration

Specify any fee changes, credits, prorations, billing start dates, and who bears costs for transitional work or cancellations.

Effective Date

Record the exact effective date for the amendment; this governs obligations, billing, and any statute of limitations for disputes tied to the change.

Authority

Include a signature block naming the authorized signatory, title, and capacity, and confirm there are no other conflicting amendments.

Attachments

Attach related exhibits, revised SOWs, or price schedules and list them by exhibit number so the parties can easily locate supporting documents.

Essential Fields to Include

Effective Date: MM/DD/YYYY

Parties: Full legal names

Reference Document: Title and original date

Amendment Summary: One-line change

Consideration: Amount or credit

Signatures: Name, title, date

How to Complete the Addendum, Step by Step

Follow a consistent sequence to avoid errors: identify the base agreement, state changes, confirm consideration, set the date, obtain approvals, and collect signatures.

01

Identify Agreement: Reference original title and date.
02

Describe Change: State specific amended clauses.
03

Set Dates: Enter effective and billing dates.
04

Sign & Store: Have authorized signers execute and retain copies.

Configuring an Online Completion Workflow

When you move the addendum online, map fields, define signers, set authentication, and configure routing to mirror your internal approval flow.

Field Mapping	Map addendum fields to your CRM or document template
Signer Order	Define sequential or parallel signing
Authentication	Choose email, SMS code, or KBA
Audit Trail	Enable timestamps and IP logging
Storage	Auto-save PDF to cloud folder

Typical Routing and Submission Flow

A dependable routing sequence reduces signer friction and ensures the executed addendum is stored and distributed correctly.

Prepare Document: Upload template and populate fields.
Assign Signers: Add emails and set signing order.
Authenticate: Apply chosen signer verification.
Finalize: Capture signatures and archive.

Technical and Compliance Considerations for eSigning

Verify HIPAA, SOC 2, or 21 CFR Part 11 needs before deploying and ensure your vendor can provide a BAA or attestation if required.

Integrations: CRM, cloud storage, and ERP links
Formats: PDF, DOCX, and archived copies
Security: TLS in transit; AES-256 at rest

Typical Timelines and Processing Expectations

Key dates—effective date, billing start, and notice periods—must be explicit. Provide realistic internal processing windows for approvals and signature collection.

Execution Deadline:

Return signed addendum within 10 business days.

Billing Change Date:

Specify start date for new pricing.

Internal Approvals:

Allow 3–5 business days for legal review.

Signature Collection:

Expect 24–72 hours with eSignature.

Distribution:

Distribute executed copy within 1 business day.

Common Mistakes to Avoid

Failing to reference the original agreement clearly, which can create ambiguity about which terms remain in force.
Changing price or scope without stating the exact effective date, leading to billing disputes or retroactive charges.
Allowing an unauthorized signatory to execute the addendum, which can render the amendment unenforceable.
Neglecting to update related exhibits or schedules, resulting in inconsistent contract documentation across systems.

Key Risks and Consequences of Errors

Invalid Signature: May void amendment

Billing Dispute: Leads to chargebacks

Noncompliance: Regulatory exposure

Contract Ambiguity: Increased litigation risk

Data Loss: Compromises auditability

Privacy Breach: HIPAA or state fines

Real-World Examples of Addendum Use

Two representative customer stories show common uses: updating billing and integrating signature workflows with back-office systems.

Optica Ventures (Brian Fitzgibbons)

Optica used an addendum to add subscription tiers and clarify billing terms for new members.

The change reduced billing disputes during rollout.
Brian noted the process simplified customer acceptance and ensured the original agreement remained intact while the company scaled membership offerings.

Xerox (Kodi-Marie Evans)

Xerox added integration language and revised delivery schedules for a specialized services tier.

The addendum linked to updated SOW exhibits.
The amendment gave operations the formal authority to execute schedule changes while preserving master agreement terms and supporting systems integration.

eSignature Vendor Pricing and Capability Snapshot

Select an eSignature plan that meets authentication, audit trail, HIPAA, and volume needs; below is a concise pricing and capability comparison.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day free trial	Varies	Varies	Varies	Varies
Bulk Send	Yes	Varies	Varies	Varies	Varies
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No
Envelope Cap	No cap	100 envelopes/user/year	Varies	Varies	Varies

Frequently Asked Questions

Answers to common questions about executing, eSigning, notarizing, and storing Membership Services Agreement Addenda.

Need help? Contact support

Can this addendum be electronically signed?
Yes. Under the ESIGN Act (15 U.S.C. ch. 96) and UETA in most states, electronic signatures are legally valid if the parties consent, intent is shown, the signature is attributable, and records are retained.
Do I need a notary or witnesses?
Usually no for commercial membership amendments, unless the underlying contract requires it or state law imposes notarization for certain types of modifications; check state notary rules before execution.
What if a signer lacks authority?
An unauthorized signature can void the addendum; confirm signatory authority in the signature block and, when necessary, attach a board resolution or power of attorney.
How do I revoke or cancel an addendum?
Revocation requires a signed mutual amendment or an express termination clause; unilateral revocation is typically ineffective unless the addendum provides for it.
Where should I store executed copies?
Keep signed originals with the base agreement in your contract repository and retain electronic copies with immutable audit trails and access controls for compliance and audits.
What retention period applies?
Retain executed addenda for the contract term plus federal or industry-specific minimums (e.g., IRS three-year guidance, HIPAA six-year rule) and follow any longer state requirements.

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